Fluid Mechanics and Hydraulic Machines (3141906) MCQs

MCQs of The Energy Equation and its Application

Showing 21 to 30 out of 32 Questions
1 2 3 4
21.
The discharge over a triangular notch is
(a) inversely proportional to  H3/2
(b) directly proportional to  H3/2
(c) inversely proportional to  H5/2
(d) directly proportional to  H5/2
Answer:

Option (d)

22.
In a venturi meter, the velocity of the liquid at the throat is
(a) higher than inlet
(b) higher than outlet
(c) lesser than inlet
(d) minimum
Answer:

Option (a)

23.
Euler's equation of motion is a statement of
(a) energy balance
(b) conservation of momentum for an inviscid liquid
(c) conservation of momentum for an incompressible flow
(d) conservation of momentum for real fluid
Answer:

Option (b)

24.
A Piezometer tube is used only for measuring
(a) low pressure
(b) high pressure
(c) moderate pressure
(d) vacuum pressure
Answer:

Option (c)

25.
The Cipoletti weir is a
(a) rectangular weir
(b) triangular weir
(c) trapezoidal weir
(d) circular weir
Answer:

Option (c)

26.
The theoretical velocity of jet at vena contracta is
(a) 2gH
(b) H×2g
(c) 2g×H
(d) 2gH
Answer:

Option (d)

27.
The velocity of the liquid flowing through the divergent portion of a Venturimeter
(a) remains constant
(b) increases
(c) decreases
(d) depends upon the mass of liquid
Answer:

Option (c)

28.
The discharge over a right-angled notch is
(a) 815Cd×2g×H
(b) 815Cd×2g×H3
(c) 815Cd×2g×H2
(d) 815Cd×2g×H5
Answer:

Option (d)

29.
The sheet of water flowing over a notch or a weir is known as
(a) sill or crest
(b) nappe or vein
(c) orifice
(d) none of these
Answer:

Option (b)

30.
The most efficient section of a channel is
(a) triangular
(b) rectangular
(c) square
(d) trapezoidal
Answer:

Option (d)

Showing 21 to 30 out of 32 Questions
1 2 3 4